1z0-821 Oracle Solaris 11 System Administration Practice Questions

D, E, F

D, E, F

D, E, F

A, B, D, G -- Explanation: A: You are not required to create a user account.
B: You must create a root password.
D: lfyou create a user account in this panel, you need to provide both the user's password and a root password.
In this case, root will be a role assigned to the user.
G: If you do not create a user account, you still need to provide a root password.
In this case, root will be a regular user.

A, B, D, G -- Explanation: A: You are not required to create a user account.
B: You must create a root password.
D: lfyou create a user account in this panel, you need to provide both the user's password and a root password.
In this case, root will be a role assigned to the user.
G: If you do not create a user account, you still need to provide a root password.
In this case, root will be a regular user.

A, B, D, G -- Explanation: A: You are not required to create a user account.
B: You must create a root password.
D: lfyou create a user account in this panel, you need to provide both the user's password and a root password.
In this case, root will be a role assigned to the user.
G: If you do not create a user account, you still need to provide a root password.
In this case, root will be a regular user.

A, B, D, G -- Explanation: A: You are not required to create a user account.
B: You must create a root password.
D: lfyou create a user account in this panel, you need to provide both the user's password and a root password.
In this case, root will be a role assigned to the user.
G: If you do not create a user account, you still need to provide a root password.
In this case, root will be a regular user.

A, B, C, F -- Explanation: A (not H): You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
B (not E): Can I enable encryption on an existing pool?Yes, the pool must be upgraded to pool version 30 to allow encrypted ZFS file systems and volumes.
C (not D): ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online.
F (not G): Encryption is the process in which data is encoded for privacy and a key is needed by the data owner to access the encoded data. You can set an encryption policy when a ZFS dataset is created, but the policy cannot be changed.

A, B, C, F -- Explanation: A (not H): You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
B (not E): Can I enable encryption on an existing pool?Yes, the pool must be upgraded to pool version 30 to allow encrypted ZFS file systems and volumes.
C (not D): ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online.
F (not G): Encryption is the process in which data is encoded for privacy and a key is needed by the data owner to access the encoded data. You can set an encryption policy when a ZFS dataset is created, but the policy cannot be changed.

A, B, C, F -- Explanation: A (not H): You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
B (not E): Can I enable encryption on an existing pool?Yes, the pool must be upgraded to pool version 30 to allow encrypted ZFS file systems and volumes.
C (not D): ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online.
F (not G): Encryption is the process in which data is encoded for privacy and a key is needed by the data owner to access the encoded data. You can set an encryption policy when a ZFS dataset is created, but the policy cannot be changed.

A, B, C, F -- Explanation: A (not H): You can use your existing storage pools as long as they are upgraded. You have the flexibility of encrypting specific file systems.
B (not E): Can I enable encryption on an existing pool?Yes, the pool must be upgraded to pool version 30 to allow encrypted ZFS file systems and volumes.
C (not D): ZFS encryption is integrated with the ZFS command set. Like other ZFS operations, encryption operations such as key changes and rekey are performed online.
F (not G): Encryption is the process in which data is encoded for privacy and a key is needed by the data owner to access the encoded data. You can set an encryption policy when a ZFS dataset is created, but the policy cannot be changed.

Explanation: pkgchk checks the accuracy of installed files or, by using the -I option, displays information about package files, pkgchk checks the integrity of directory structures and files. Discrepancies are written to standard error along with a detailed explanation of the problem.

D, F -- Explanation: D: According to line /etc/securityF: According to line /export/homeNot E: According to line IGNORE dirmtimeNote: In default mode, the bart compare command, as shown in the following example, checks all the files installed on the system, with the exception of modified directory timestamps (dirmtime):CHECK allIGNORE dirmtimeNote 2: The Basic Audit Reporting Tool (BART) feature of Oracle Solaris enables you to comprehensively validate systems by performing file-level checks of a system over time. By creating BART manifests, you can easily and reliably gather information aboutthe components of the software stackthat is installed on deployed systems.
BART is a useful tool for integrity management on one system or on a network of systems.

D, F -- Explanation: D: According to line /etc/securityF: According to line /export/homeNot E: According to line IGNORE dirmtimeNote: In default mode, the bart compare command, as shown in the following example, checks all the files installed on the system, with the exception of modified directory timestamps (dirmtime):CHECK allIGNORE dirmtimeNote 2: The Basic Audit Reporting Tool (BART) feature of Oracle Solaris enables you to comprehensively validate systems by performing file-level checks of a system over time. By creating BART manifests, you can easily and reliably gather information aboutthe components of the software stackthat is installed on deployed systems.
BART is a useful tool for integrity management on one system or on a network of systems.

B, C -- Explanation: B: banner
Displays power-on banner.
The PROM displays the system banner. The following example shows a SPARCstation 2 banner. The banner for your SPARC system may be different.
SPARCstation 2, Type 4 Keyboard
ROM Rev. 2.0, 16MB memory installed. Serial # 289 Ethernet address 8:0:20:d:e2:7b, Host ID: 55000121 C: .version
Displays version and date of the boot PROM.
Note: OBP-OpenBootProm is a firmware which is placed on the sun machine's prom chip. It is a os independent user interface to deal with the sun machine's hardware components. The user interface provides one or more commands to display system information.

B, C -- Explanation: B: banner
Displays power-on banner.
The PROM displays the system banner. The following example shows a SPARCstation 2 banner. The banner for your SPARC system may be different.
SPARCstation 2, Type 4 Keyboard
ROM Rev. 2.0, 16MB memory installed. Serial # 289 Ethernet address 8:0:20:d:e2:7b, Host ID: 55000121 C: .version
Displays version and date of the boot PROM.
Note: OBP-OpenBootProm is a firmware which is placed on the sun machine's prom chip. It is a os independent user interface to deal with the sun machine's hardware components. The user interface provides one or more commands to display system information.

This solution correctly uses zones for tier isolation. It connects the Web zone to the external network via a VNIC on net0. It creates a private, isolated network for the App and DB tiers using an etherstub and dedicated VNICs, meeting the high-speed requirement. It also correctly places the responsibility for fine-grained access control (like port filtering) within the zones themselves using IP Filter, which is a best practice.

Explanation: Part of the job of cleaning up heavily loaded file systems involves locating and removing files that have not been used recently. You can locate unused files by using the Is or find commands.
Other ways to conserve disk space include emptying temporary directories such as the directories located in /var/tmp or /var/spool, and deleting core and crash dump files.
Note: Core files are generated when a process or application terminates abnormally. Core files are managed with the coreadm command.
For example, you can use the coreadm command to configure a system so that all process core files are placed in a single system directory. This means it is easier to track problems by examining the core files in a specific directory whenever a process or daemon terminates abnormally.

Explanation: Each user belongs to a group that is referred to as the user’s primary group. The GID number, located in the user’s account entry within the /etc/passwd file, specifies the user’s primary group.
Each user can also belong to up to 15additional groups, known as secondary groups. In the /etc/group file, you can add users to group entries, thus establishing the user’s secondary group affiliations.
Note (4 PSARC/2009/542):his project proposes changing the maximum value for NGROUPS_MAX from 32 to 1024 by changing the definition of NGROUPS_UMAX from 32 to 1024.The use for a larger number of groups is described in CR 4088757, particular in the case of Samba servers and ADS clients; the Samba servers map every SID to a Unix group. Users with more than 32 groups SIDs are common. We've seen reports varying from '64 is enough', '128 is absolutely enough' and 'we've users with more 190 group SIDS).www.j3e.de/ngroups.html):')NGROUPS_MAX as defined by different Unix versions are as follows (http://www.j3e.de/ngroups.html):Linux Kernel )= 2.6.3 65536Linux Kernel ( 2.6.3 32Tru64 / OSF/1 32IBM AIX 5.2 64IBMAIX5.3... 6.1 128OpenBSD, NetBSD, FreeBSD, Darwin (Mac OS X) 16Sun Solaris 7, 8, 9, 10 16 (can varyfrom 0-32)HP-UX 20IRIX 16 (can vary from 0-32)Plan 9 from Bell Labs 32Minix 3 0 (Minix-vmd: 16)QNX 6.4 8

B, D

B, D